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| Mirrors > Home > MPE Home > Th. List > Mathboxes > brtxpsd | Structured version Visualization version GIF version | ||
| Description: Expansion of a common form used in quantifier-free definitions. (Contributed by Scott Fenton, 17-Apr-2014.) (Revised by Mario Carneiro, 19-Apr-2014.) |
| Ref | Expression |
|---|---|
| brtxpsd.1 | ⊢ 𝐴 ∈ V |
| brtxpsd.2 | ⊢ 𝐵 ∈ V |
| Ref | Expression |
|---|---|
| brtxpsd | ⊢ (¬ 𝐴ran ((V ⊗ E ) △ (𝑅 ⊗ V))𝐵 ↔ ∀𝑥(𝑥 ∈ 𝐵 ↔ 𝑥𝑅𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-br 5107 | . . 3 ⊢ (𝐴ran ((V ⊗ E ) △ (𝑅 ⊗ V))𝐵 ↔ 〈𝐴, 𝐵〉 ∈ ran ((V ⊗ E ) △ (𝑅 ⊗ V))) | |
| 2 | opex 5436 | . . . . 5 ⊢ 〈𝐴, 𝐵〉 ∈ V | |
| 3 | 2 | elrn 5881 | . . . 4 ⊢ (〈𝐴, 𝐵〉 ∈ ran ((V ⊗ E ) △ (𝑅 ⊗ V)) ↔ ∃𝑥 𝑥((V ⊗ E ) △ (𝑅 ⊗ V))〈𝐴, 𝐵〉) |
| 4 | brsymdif 5162 | . . . . . 6 ⊢ (𝑥((V ⊗ E ) △ (𝑅 ⊗ V))〈𝐴, 𝐵〉 ↔ ¬ (𝑥(V ⊗ E )〈𝐴, 𝐵〉 ↔ 𝑥(𝑅 ⊗ V)〈𝐴, 𝐵〉)) | |
| 5 | brv 5445 | . . . . . . . . 9 ⊢ 𝑥V𝐴 | |
| 6 | vex 3458 | . . . . . . . . . 10 ⊢ 𝑥 ∈ V | |
| 7 | brtxpsd.1 | . . . . . . . . . 10 ⊢ 𝐴 ∈ V | |
| 8 | brtxpsd.2 | . . . . . . . . . 10 ⊢ 𝐵 ∈ V | |
| 9 | 6, 7, 8 | brtxp 36819 | . . . . . . . . 9 ⊢ (𝑥(V ⊗ E )〈𝐴, 𝐵〉 ↔ (𝑥V𝐴 ∧ 𝑥 E 𝐵)) |
| 10 | 5, 9 | mpbiran 722 | . . . . . . . 8 ⊢ (𝑥(V ⊗ E )〈𝐴, 𝐵〉 ↔ 𝑥 E 𝐵) |
| 11 | 8 | epeli 5557 | . . . . . . . 8 ⊢ (𝑥 E 𝐵 ↔ 𝑥 ∈ 𝐵) |
| 12 | 10, 11 | bitri 278 | . . . . . . 7 ⊢ (𝑥(V ⊗ E )〈𝐴, 𝐵〉 ↔ 𝑥 ∈ 𝐵) |
| 13 | brv 5445 | . . . . . . . 8 ⊢ 𝑥V𝐵 | |
| 14 | 6, 7, 8 | brtxp 36819 | . . . . . . . 8 ⊢ (𝑥(𝑅 ⊗ V)〈𝐴, 𝐵〉 ↔ (𝑥𝑅𝐴 ∧ 𝑥V𝐵)) |
| 15 | 13, 14 | mpbiran2 723 | . . . . . . 7 ⊢ (𝑥(𝑅 ⊗ V)〈𝐴, 𝐵〉 ↔ 𝑥𝑅𝐴) |
| 16 | 12, 15 | bibi12i 342 | . . . . . 6 ⊢ ((𝑥(V ⊗ E )〈𝐴, 𝐵〉 ↔ 𝑥(𝑅 ⊗ V)〈𝐴, 𝐵〉) ↔ (𝑥 ∈ 𝐵 ↔ 𝑥𝑅𝐴)) |
| 17 | 4, 16 | xchbinx 337 | . . . . 5 ⊢ (𝑥((V ⊗ E ) △ (𝑅 ⊗ V))〈𝐴, 𝐵〉 ↔ ¬ (𝑥 ∈ 𝐵 ↔ 𝑥𝑅𝐴)) |
| 18 | 17 | exbii 1881 | . . . 4 ⊢ (∃𝑥 𝑥((V ⊗ E ) △ (𝑅 ⊗ V))〈𝐴, 𝐵〉 ↔ ∃𝑥 ¬ (𝑥 ∈ 𝐵 ↔ 𝑥𝑅𝐴)) |
| 19 | 3, 18 | bitri 278 | . . 3 ⊢ (〈𝐴, 𝐵〉 ∈ ran ((V ⊗ E ) △ (𝑅 ⊗ V)) ↔ ∃𝑥 ¬ (𝑥 ∈ 𝐵 ↔ 𝑥𝑅𝐴)) |
| 20 | exnal 1860 | . . 3 ⊢ (∃𝑥 ¬ (𝑥 ∈ 𝐵 ↔ 𝑥𝑅𝐴) ↔ ¬ ∀𝑥(𝑥 ∈ 𝐵 ↔ 𝑥𝑅𝐴)) | |
| 21 | 1, 19, 20 | 3bitrri 301 | . 2 ⊢ (¬ ∀𝑥(𝑥 ∈ 𝐵 ↔ 𝑥𝑅𝐴) ↔ 𝐴ran ((V ⊗ E ) △ (𝑅 ⊗ V))𝐵) |
| 22 | 21 | con1bii 359 | 1 ⊢ (¬ 𝐴ran ((V ⊗ E ) △ (𝑅 ⊗ V))𝐵 ↔ ∀𝑥(𝑥 ∈ 𝐵 ↔ 𝑥𝑅𝐴)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 ↔ wb 209 ∀wal 1568 ∃wex 1812 ∈ wcel 2147 Vcvv 3454 △ csymdif 4200 〈cop 4838 class class class wbr 5106 E cep 5554 ran crn 5656 ⊗ ctxp 36769 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5252 ax-nul 5263 ax-pr 5395 ax-un 7772 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-symdif 4201 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-br 5107 df-opab 5171 df-mpt 5190 df-id 5550 df-eprel 5555 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-iota 6509 df-fun 6557 df-fn 6558 df-f 6559 df-fo 6561 df-fv 6563 df-1st 8022 df-2nd 8023 df-txp 36793 |
| This theorem is used by: brtxpsd2 36834 |
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